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ams AG AS5045 Operation Manual

12 bit programmable magnetic rotary encoder
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austriamicrosystems AG
is now
ams AG
The technical content of this austriamicrosystems document is still valid.
Contact information:
Headquarters:
ams AG
Tobelbaderstrasse 30
8141 Unterpremstaetten, Austria
Tel: +43 (0) 3136 500 0
e-Mail:
ams_sales@ams.com
Please visit our website at
www.ams.com

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Summary of Contents for ams AG AS5045

  • Page 1 AG is now ams AG The technical content of this austriamicrosystems document is still valid. Contact information: Headquarters: ams AG Tobelbaderstrasse 30 8141 Unterpremstaetten, Austria Tel: +43 (0) 3136 500 0 e-Mail: ams_sales@ams.com Please visit our website at www.ams.com...
  • Page 2 ADAPTER PCB OPERATION MANUAL 1 The AS5045 Adapter PCB The AS5045 adapter PCB is a simple circuit allowing customers to test and evaluate the AS5045 rotary encoder rapidly without having to build their own test fixture or PCB. The PCB can be used as standalone unit or plugged onto the AS5045 demo board as external encoder.

  • Page 3: General Description

    See Error! either above or below the device. Reference source not found. The AS5045 can be configured to specific customer Magnet Field Magnitude DECrease; active low, indicates a distance requirements by programming the integrated OTP...

  • Page 4: Principle Of Operation

    AS5045 12-BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER Adapter PCB Operation Manual 5 Principle of Operation The AS5045 chip consists of a ring of hall 3.9 mm 3.9 mm elements, placed at the center of the IC at a circle diameter of 2.2mm (86.6mil).
  • Page 5 AS5045 12-BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER Adapter PCB Operation Manual 6 AS5045 Adapter PCB Schematic: Figure 5: AS5045 Adapter PCB schematic For normal operation, the only required external components are the buffer cap at VDD3V3 (C4) and the pull-down resistor for CSn (R7; 0Ω….4k7).
  • Page 6 The clock rate can be as high as 1MHz. There is no minimum clock rate. Data can also be clocked manually. The digital I/O's of the AS5045 are buffered by VDD5V, therefore the digital I/O's of the controller should be at the same voltage level (see power supply options table).
  • Page 7 (2.74) All Dimensions in inch (mm) Figure 7: AS5045 adapter board dimensions. 7 Supporting Tools austriamicrosystems provides the following tools for developments using the AS5045 rotary encoder IC: AS5045 Demoboard (see Figure 8) AS5045 Demoboard Operation Manual AS5045 Demoboard Software...
  • Page 8 7-segment display, a LED displaying the PWM output and two magnet status LEDs. It also supports external AS5045 applications, such as the AS5045 adapter PCB or in-system AS5045 customer applications that can be connected to the demoboard and displayed, modified and permanently programmed using the AS5045 Demoboard Software.
  • Page 9 (see: 7 Supporting Tools) Connecting the AS5045 adapter PCB to the demoboard The AS5045 Adapter PCB is intended as a standalone device that allows easy and quick testing of the AS5045 without the need of having to make your own PCB.
  • Page 10 AS5045 12-BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER Adapter PCB Operation Manual If you use the Adapter PCB as external encoder for the AS5045 demoboard with an extension cable or experience data transmission errors, it is requested to configure the Adapter PCB for 3.3V supply voltage.
  • Page 11 (see: 7 Supporting Tools) The AS5045 Adapter PCB can be read as “external encoder” in the same way as the internal encoder. Switching from internal to external encoder can be done on the bottom left corner of the demoboard software screen : Encoder = onboard / external.
  • Page 12 AS5045 12-BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER Adapter PCB Operation Manual 10 Contact Headquarters austriamicrosystems AG A 8141 Schloss Premstätten, Austria Phone: +43 3136 500 0 Fax: +43 3136 525 01 industry.medical@austriamicrosystems.com www.austriamicrosystems.com 10.1 Sales Offices austriamicrosystems Germany GmbH austriamicrosystems USA, Inc.

  • Page 13: Revision History

    AS5045 12-BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER Adapter PCB Operation Manual 11 Revision History Jul. 04, 2006 Figure 7: AS5045 adapter board dimensions. Creation Jan.16, 2006 12 Copyright Devices sold by austriamicrosystems are covered by the warranty and patent indemnification provisions appearing in its Term of Sale.

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